1 . zamien na dodawanie i oblicz
np. : -15-(-35) = -15 + 35 = .....
- 4 - ( - 2,1) = .... + ..... = .....
-111 - ( -624 ) = .... + .... = ......
4,4 - ( - 5 ) = ..... + ..... = .......
-6- ( 9 i jedna druga ) = ..... + ..... = .....
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2. oblicz :
5-7-13+15-22 =
-21+16-3-12+24 =
13,5-24+2,5-5,3+3,2 =
3,5-2-12,5+4-8,5 =
-3,6 + 2 i trzy siódme - 1,4 - ( - jedenaście siódmych ) =
-5,75+ 4 i dwie trzecie - 2 i jedna czwarta - ( - 3 i jedna trzecia) =
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2.zad 1.=4, 2.=44 d*-*b